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Finding the Third Proportional to 11,988 and 26,121

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Solution

The third proportional to 11,988 and 26,121 is: 56,915.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,988 : 26,121 = 26,121 : x
  2. Step 2: Convert to fraction form
    11,988/26,121 = 26,121/x
  3. Step 3: Cross multiply
    11,988x = 26,121 × 26,121
  4. Step 4: Simplify right side
    11,988x = 682,306,641
  5. Step 5: Solve for x
    x = 682,306,641/11,988
  6. Step 6: Final answer
    x = 56,915.80

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.